Window fan



FIG. 1 is a front perspective view of a window fan showing my newdesign;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left-side elevation view thereof;

FIG. 5 is a right-side elevation view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a front perspective view of the window fan in a configurationwith one of the fans set at an angle; and,

FIG. 9 is a front elevation view of the window fan in the configurationof FIG. 8.

The broken lines shown in the drawings are for the purpose ofillustrating portions of the article, and form no part of the claimeddesign.

CLAIM The ornamental design for a window fan, as shown and described. 